If you just bought a new Nokia phone then you probably noticed it came with an IPSEC based vpn client software. That client provided by Nokia is completely useless for normal usage and requires a special Nokia approved server which is very complicated to setup. The only way to use VPN is through the new and only PPTP client on the market called SymVPN. This will work on most S60 (3rd edition) devices based on Symbian OS 3.1 like Nokia E-Series: E51, E60, E61, E61i, E63, E65, E66, E70, E71, E90 And N-series. You will need to buy the software ofcourse, install it on your phone and then enter the VPN account details you got from your provider. Currently SymVPN is the only way to use PPTP VPN on Nokia phones and has been tested with Banana VPN, Happy VPN, Liberty VPN, WiTopia, Hotspot and VPNAccounts.com.
Visit the official site for more info: Symvpn by Telexy Networks (14-day full trial version available)